Abstract: In order to provide experimental basis for improving the welfare level of weaned piglets, the preference experiment of piglets for nylon rope and plastic tube placed in the enclosure was conducted. Four healthy piglets with similar weights were selected from each of the 3 litters of piglets 7 days after weaning, respectively; two kinds of toys with different materials, nylon rope and plastics, were placed in the enclosure to study the frequency, time and preference of weaned piglets to different toys. The results showed that the duration of manipulating time caused by the nylon rope was significantly longer than plastic tube （P〈 0.05）; the number of lifting and the fighting caused by the nylon rope were higher than those of the plastic tube, but the difference was not significant （P〉0.05）; in the preference analysis of different parts of toys, the control time of piglets on the convex area of two kinds of toys was longer than that of the support area （P〈0.05）. Taken together, compared with plastic tube, weaned piglets have a stronger preference for nylon rope, thus nylon rope is a better material to improve the welfare of weaned piglets.